createCookie("screen.test", "valid");
var cookieTest = readCookie("screen.test");

if (cookieTest != null) {
  var cookieWidth = readCookie("screen.width");
  var cookieHeight = readCookie("screen.height");

  if (cookieWidth == null || parseInt(cookieWidth) != screen.width) {
      createCookie("screen.width", screen.width);
      createCookie("screen.height", screen.height);
      document.location = document.location; //"/resolution/set?screen.width=" + screen.width + "&screen.height=" + screen.height;
  }
}